function odf = plus(o1,o2)
% superposeing two ODFs
%
% overload the + operator, i.e. one can now write @ODF + @ODF in order
% get the superposition of two ODFs
%
%% See also
% ODF_index ODF/mtimes

if isa(o2,'double')
  
  o2 = o2 * uniformODF(o1.CS,o1.SS);  
  
elseif isa(o1,'double')
  
  o1 = o1 * uniformODF(o2.CS,o2.SS);  
  
end

odf = [o1,o2];

  
